add `_' prefix to make the function name match comments and existing
uses. Remove leading prefix from _AC_CANONICAL_HOST.
# _AC_CHECK_TOOL_PREFIX
# ---------------------
-AC_DEFUN(AC_CHECK_TOOL_PREFIX,
-[AC_REQUIRE([_AC_CANONICAL_HOST])dnl
+AC_DEFUN(_AC_CHECK_TOOL_PREFIX,
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_REQUIRE([_AC_CANONICAL_BUILD])dnl
if test $host != $build; then
ac_tool_prefix=${host_alias}-
# _AC_CHECK_TOOL_PREFIX
# ---------------------
-AC_DEFUN(AC_CHECK_TOOL_PREFIX,
-[AC_REQUIRE([_AC_CANONICAL_HOST])dnl
+AC_DEFUN(_AC_CHECK_TOOL_PREFIX,
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_REQUIRE([_AC_CANONICAL_BUILD])dnl
if test $host != $build; then
ac_tool_prefix=${host_alias}-